Suppose a $1010-$year, $$$$1$ comma $0001,000$ bond with a coupon rate of $8\mathrm{.}6\%8\mathrm{.}6\%$ and semiannual coupons is trading for $$$$1$ comma $034\mathrm{.}371,034\mathrm{.}37.$ a$.$ What is the$$ bond's yield to maturity$($expressed as an APR with semiannual$$ compounding$)?$ b$.$ If the$$ bond's yield to maturity changes to $9\mathrm{.}9\%9\mathrm{.}9\%$APR$,$ what will be the$$ bond's price? Question content area bottom Part $1$ a$.$ What is the$$ bond's yield to maturity$($expressed as an APR with semiannual$$ compounding$)?$ The$$ bond's yield to maturity is enter your response here$\%.($Round to two decimal$$ places.$)$